Study on dynamic signal recognition of gas sensor based on temperature modulation

HE Ai-xiang; TANG Zhen-an; WEI Guang-fen; YU Jun

doi:10.13873/J.1000-9787(2015)06-0024-03

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Study on dynamic signal recognition of gas sensor based on temperature modulation

更新时间：2025-09-11

- Study on dynamic signal recognition of gas sensor based on temperature modulation
- Vol. 34, Issue 6, Pages: 24-26(2015)
- 作者机构：
  
  1. 大连理工大学电信学部集成电路技术辽宁省重点实验室
  2. 山东工商学院信电学院
- 作者简介：
- 基金信息：
- DOI：10.13873/J.1000-9787(2015)06-0024-03
  CLC： TP212
- Published：2015
- 稿件说明：
移动端阅览
[1]何爱香,唐祯安,魏广芬,余隽.基于温度调制的气体传感器动态信号识别研究[J].传感器与微系统,2015,34(06):24-26.

HE Ai-xiang, TANG Zhen-an, WEI Guang-fen, et al. Study on dynamic signal recognition of gas sensor based on temperature modulation[J]. 2015, 34(6): 24-26.
[1]何爱香,唐祯安,魏广芬,余隽.基于温度调制的气体传感器动态信号识别研究[J].传感器与微系统,2015,34(06):24-26. DOI： 10.13873/J.1000-9787(2015)06-0024-03.

HE Ai-xiang, TANG Zhen-an, WEI Guang-fen, et al. Study on dynamic signal recognition of gas sensor based on temperature modulation[J]. 2015, 34(6): 24-26. DOI： 10.13873/J.1000-9787(2015)06-0024-03.

摘要

利用4只掺杂Pt的Sn O2微热板气体传感器组成传感器阵列来识别三种不同的工业气体（CO

CH4和C2H5OH）

传感器加热分别采用了三角波、正弦波、锯齿波和脉冲波四种温度调制模式。然后将得到的传感器动态响应信号进行短时傅里叶变换（STFT）提取特征信息

并结合主成分分析（PCA）方法将特征信息进行降维处理

发现调制周期对气体种类影响较小。最后利用决策树识别三种不同的气体

识别准确率较高。实验结果证明了该算法的正确性和可行性。

Abstract

Present a method for identifying three different kinds of industrial gases（ CO

CH4 and C2H5OH）

the sensor array consists of 4 Sn O2 micro hotplate gas sensor doped Pt. Micro hotplate sensor heater adopts triangle wave

sine wave

saw tooth wave and pulse wave respectively. Then feature information of sensor dynamic response signal is extracted with short-time Fourier transform and combined with principal component analysis method

feature information is processed by dimensionality reduction

it is found that the influence of modulation period on gas species is smaller. Finally

three different gases are recognized by decision tree

recognition accuracy rate is high. Experimental result proves the correctness and feasibility of the algorithm.

关键词

Keywords

references

Active temperature modulation of metal-oxide sensors for quantitative analysis of gas mixtures [J] . Rakesh Gosangi,Ricardo Gutierrez-Osuna. Sensors & Actuators: B. Chemical . 2013

A breakthrough in gas diagnosis with a temperature-modulated generic metal oxide gas sensor [J] . Faramarz Hossein-Babaei,Amir Amini. Sensors & Actuators: B. Chemical . 2012

Improving gas identification accuracy of a temperature-modulated gas sensor using an ensemble of classifiers [J] . Amir Amini,Mohammad Ali Bagheri,Gholam Ali Montazer. Sensors & Actuators: B. Chemical . 2012

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